ISSUE TRAFFIC INFORMATION
a. Give descriptions of vehicles, equipment, or personnel on or near the movement area of an
airport. These descriptions should help pilots easily recognize them.
"Workmen on taxiway Bravo."
"Mower to left of runway six."
"Aircraft to left of runway three-six."
"Trucks crossing approach end of runway one-eight."
b. Describe the relative position of airborne traffic in an easy to understand manner, such as "to
your right" or "ahead of you."
"Traffic, C-12 downwind to your right."
"Traffic, C-12 one mile final."
"Traffic, C-12 right base."
c. When using a certified tower radar, you may give traffic advisories using the standard
phraseologies used in radar air traffic control (ATC).
"Traffic, two o'clock, five miles, southbound, altitude unknown."
"Traffic, ten o'clock, eight miles, eastbound, converging, altitude unknown."
ISSUE WAKE TURBULENCE ADVISORIES
Wake turbulence may be met by aircraft in flight or when operating on the movement area.
Since wake turbulence is mostly unpredictable, the controller is not responsible for expecting its
existence or effect. A controller, however, should make every effort to alert the pilot to any suspected
a. Issue wake turbulence cautionary advisories (and the position; altitude, if known; and
direction of heavy jets, if applicable) to--
(1) Visual flight rule (VFR) aircraft that are not being radar vectored but are behind heavy
(2) Instrument flight rule aircraft that accept a visual approach or visual separation.
(3) VFR arriving aircraft that have been radar vectored before but the vectoring has been